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Molecular Physics | Thermodynamics
How much energy is required to change a 44 g
ice cube from ice at −13◦C to steam at 111◦C?
The specific heat of ice is 2090 J/kg · ◦ C, the
specific heat of water is 4186 J/kg · ◦ C, the
specific heat of stream is 2010 J/kg · ◦ C, the
heat of fusion is 3.33 × 105
J/kg, and the heat
of vaporization is 2.26 × 106 J/kg.
Answer in units of J.
ice cube from ice at −13◦C to steam at 111◦C?
The specific heat of ice is 2090 J/kg · ◦ C, the
specific heat of water is 4186 J/kg · ◦ C, the
specific heat of stream is 2010 J/kg · ◦ C, the
heat of fusion is 3.33 × 105
J/kg, and the heat
of vaporization is 2.26 × 106 J/kg.
Answer in units of J.
Molecular Physics | Thermodynamics
A jar of tea is placed in sunlight until it
reaches an equilibrium temperature of 33.4◦C .
In an attempt to cool the liquid, which has a
mass of 184 g , 103 g of ice at 0.0◦C is added.
At the time at which the temperature of the
tea is 32.6◦C , find the mass of the remaining ice in the jar. The specific heat of water
is 4186 J/kg ·◦ C . Assume the specific heat
capacity of the tea to be that of pure liquid
water.
Answer in units of g.
reaches an equilibrium temperature of 33.4◦C .
In an attempt to cool the liquid, which has a
mass of 184 g , 103 g of ice at 0.0◦C is added.
At the time at which the temperature of the
tea is 32.6◦C , find the mass of the remaining ice in the jar. The specific heat of water
is 4186 J/kg ·◦ C . Assume the specific heat
capacity of the tea to be that of pure liquid
water.
Answer in units of g.
Molecular Physics | Thermodynamics
A 0.0625 kg ingot of metal is heated to 213◦C
and then is dropped into a beaker containing
0.4 kg of water initially at 20◦C.
If the final equilibrium state of the mixed
system is 22.4◦C, find the specific heat of
the metal. The specific heat of water is
4186 J/kg ·◦ C.
Answer in units of J/kg ·◦ C.
and then is dropped into a beaker containing
0.4 kg of water initially at 20◦C.
If the final equilibrium state of the mixed
system is 22.4◦C, find the specific heat of
the metal. The specific heat of water is
4186 J/kg ·◦ C.
Answer in units of J/kg ·◦ C.
Molecular Physics | Thermodynamics
A 300 g glass thermometer initially at 21 ◦C
is put into 247 cm3
of hot water at 81 ◦C.
Find the final temperature of the thermometer, assuming no heat flows to the
surroundings. The specific heat of glass is
0.2 cal/g · ◦ C and of water 1 cal/g · ◦ C.
is put into 247 cm3
of hot water at 81 ◦C.
Find the final temperature of the thermometer, assuming no heat flows to the
surroundings. The specific heat of glass is
0.2 cal/g · ◦ C and of water 1 cal/g · ◦ C.
Molecular Physics | Thermodynamics
Calculate the specific heat capacity of a 3.0kg piece of metal which experiences a temperature rise of 25∘C when it is heated at a rate of 60W for 10minutes, if a total of 3000J heats the surroundings during this process.
Molecular Physics | Thermodynamics
A beaker has 100 g of water. The amount of energy needed to raise the temperature of the water 5°C is approximately
Molecular Physics | Thermodynamics
When i cycled from home at a speed at 36km/h i reached the station 4mins after the train left.if i had cycled at 45km/h i would reach to the station 4min before the train left.how far is the station
Molecular Physics | Thermodynamics
A steel railroad track has a length of 21 m
when the temperature is 2◦C.
What is the increase in the length of the
rail on a hot day when the temperature is
40 ◦C? The linear expansion coefficient of
steel is 11 × 10−6
(
◦C)−1
.
Answer in units of m.
when the temperature is 2◦C.
What is the increase in the length of the
rail on a hot day when the temperature is
40 ◦C? The linear expansion coefficient of
steel is 11 × 10−6
(
◦C)−1
.
Answer in units of m.
Molecular Physics | Thermodynamics
Find the total translational kinetic energy of
3 L of oxygen gas held at a temperature of
−3C◦ and a pressure of 2 atm.
Answer in units of J.
3 L of oxygen gas held at a temperature of
−3C◦ and a pressure of 2 atm.
Answer in units of J.
Molecular Physics | Thermodynamics
A 200.0 ml of a gas is collected at 20.0 0C and 733.5mm of Hg. The mass of the sample is 0.934g. What is its Molar mass?
